
Product characteristics Maximum door weight 140 kg Applicable door width 1050-1250 mm Maximum opening angle 116° Hold open position (standard) 90° Speed adjustment / action Two-section speed adjustment, double action Responsive...
| Maximum door weight | 140 kg |
| Applicable door width | 1050–1250 mm |
| Maximum opening angle | 116° |
| Hold open position (standard) | 90° |
| Speed adjustment/action | Two-section speed adjustment, double action |
| Test life | 500,000 cycles |
Haida has more than 110 CNC machines and uses 3D design and development techniques, CNC product synthesis, CNC lathe tooling, CNC laser cutting, CNC painting and finishing, CNC laser sculpting and computerized laboratory testing.
Since the establishment of the enterprise, we have continuously improved our infrastructure and introduced a number of advanced production lines from abroad, which ensures our high production capacity. The standardized organization of the technological process maintains order in each link; A strict supervision and control system lays a solid foundation for high quality.
Since the founding of the brand, we have received wide recognition as well as various certificates, which is the greatest recognition for us.
In 2011, our trademark was recognized as a Famous Trademark of Zhejiang Province.
In 2012, we were named China's invisible champion enterprise in the field of door hardware.
In 2014, we received the Industrial Safety Standardization Certificate and the High-Tech Enterprise Certificate. At the same time, we have become one of the top ten door management enterprises in China.
In 2016, we entered the top 30 enterprises in the hardware industry.
We are also a key enterprise of Huzhou City, the technical cooperation and supervision organization of Tongji University.
Our products have American ANSI certification and European CE certification.